Multiple fibers and fabric finishes were developed that claim to have active moisture management effects; having different properties in different ambient climates. In this study, basic polyester, cotton, and poly-cotton fabrics were studied both with and without such an active finish. Moisture management tests were carried out on vapor transmission and liquid management at 21 °C and at 35 °C. The results show that the fabrics with the finish gave 5-10% better liquid moisture management properties in a 35 °C environment. No significant effects on vapor transmission properties were found. Standard test methods at 21°C did not show these differences. Active finishes and technologies require dedicated testing and analysis in specific environments and may require transient conditions that most standard tests do not cover.